GB1576426A - Eccentricity compensating system in recording and playbackapparatus - Google Patents
Eccentricity compensating system in recording and playbackapparatus Download PDFInfo
- Publication number
- GB1576426A GB1576426A GB11119/76A GB1111976A GB1576426A GB 1576426 A GB1576426 A GB 1576426A GB 11119/76 A GB11119/76 A GB 11119/76A GB 1111976 A GB1111976 A GB 1111976A GB 1576426 A GB1576426 A GB 1576426A
- Authority
- GB
- United Kingdom
- Prior art keywords
- track
- signal
- information
- recording
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/005—Programmed access to indexed parts of tracks of operating discs, by guiding the disc
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
- G11B7/0904—Dithered tracking systems
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
- G11B7/0953—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
Landscapes
- Optical Recording Or Reproduction (AREA)
- Read Only Memory (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB11119/76A GB1576426A (en) | 1976-03-19 | 1976-03-19 | Eccentricity compensating system in recording and playbackapparatus |
| US05/777,475 US4138741A (en) | 1976-03-19 | 1977-03-14 | Disc eccentricity compensating system |
| NL7702979A NL7702979A (nl) | 1976-03-19 | 1977-03-18 | Stelsel voor het opnemen en terugspelen, dat ge- bruikt wordt bij schijven, trommels of soortge- lijke draaiende oppervlakken. |
| FR7708219A FR2344910A1 (fr) | 1976-03-19 | 1977-03-18 | Dispositif de compensation d'excentricite pour appareil d'enregistrement de disque |
| JP3102277A JPS52114305A (en) | 1976-03-19 | 1977-03-18 | Optical recorder reproducer |
| DE2711924A DE2711924C2 (de) | 1976-03-19 | 1977-03-18 | Spursteuersystem für ein mit plattenförmigem Aufzeichnungsmedium arbeitendes Aufzeichnungs/Wiedergabegerät |
| AU23389/77A AU510208B2 (en) | 1976-03-19 | 1977-03-18 | Eccentricity compensating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB11119/76A GB1576426A (en) | 1976-03-19 | 1976-03-19 | Eccentricity compensating system in recording and playbackapparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1576426A true GB1576426A (en) | 1980-10-08 |
Family
ID=9980387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11119/76A Expired GB1576426A (en) | 1976-03-19 | 1976-03-19 | Eccentricity compensating system in recording and playbackapparatus |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4138741A (es) |
| JP (1) | JPS52114305A (es) |
| AU (1) | AU510208B2 (es) |
| DE (1) | DE2711924C2 (es) |
| FR (1) | FR2344910A1 (es) |
| GB (1) | GB1576426A (es) |
| NL (1) | NL7702979A (es) |
Families Citing this family (64)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4321700A (en) * | 1974-10-21 | 1982-03-23 | Digital Recording Corporation | Optical track segment intercept apparatus |
| FR2366636A1 (fr) * | 1976-10-01 | 1978-04-28 | Thomson Brandt | Dispositif d'enregistrement optique d'information sur un support avec asservissement de la position de la tache d'enregistrement sur le support d'information |
| US4205338A (en) * | 1977-11-03 | 1980-05-27 | Laser File Inc. | Disc recording tracking system |
| JPS5480716A (en) * | 1977-12-12 | 1979-06-27 | Sony Corp | Automatic tracking apparatus |
| JPS5913101B2 (ja) * | 1977-12-16 | 1984-03-27 | 株式会社日立製作所 | ランダムアクセス方法 |
| NL187413C (nl) * | 1978-03-16 | 1991-09-16 | Philips Nv | Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager. |
| NL7811003A (nl) * | 1978-11-06 | 1980-05-08 | Philips Nv | Schijfvormige, optisch uitleesbare registratiedrager, als opslagmedium voor data-informatie. |
| US4236105A (en) * | 1979-01-12 | 1980-11-25 | Mca Discovision, Inc. | Digital center tracking system |
| US4234837A (en) * | 1979-01-12 | 1980-11-18 | Mca Discovision, Inc. | Digital center tracking system |
| US4271334A (en) * | 1979-04-06 | 1981-06-02 | Discovision Associates | Apparatus for correcting for temperature-induced tracking errors in a system for recovering information from a recording disc |
| JPS5611673A (en) * | 1979-07-03 | 1981-02-05 | Pioneer Video Corp | Address information retrieval method in information recording medium reproducing unit |
| EP0023767B1 (en) * | 1979-07-16 | 1984-03-07 | Discovision Associates | Video player/recorder for recording on a blank disk and method for home recording |
| US4245247A (en) * | 1979-07-19 | 1981-01-13 | Eastman Kodak Company | Hard copy reproduction from video disc information |
| GB2054240B (en) * | 1979-07-19 | 1983-06-22 | Burroughs Corp | Disc eccentricity measuring means |
| US4296491A (en) * | 1979-07-30 | 1981-10-20 | Atlantic Richfield Company | Information carrier having inter-track identification code information |
| FR2462758A1 (fr) * | 1979-08-03 | 1981-02-13 | Thomson Csf | Dispositif optique d'acces a une piste portee par un support d'information et systeme de memoire optique comportant un tel dispositif |
| US4419699A (en) * | 1979-10-12 | 1983-12-06 | Rca Corporation | Digital on video recording and playback system |
| US4313134A (en) * | 1979-10-12 | 1982-01-26 | Rca Corporation | Track error correction system as for video disc player |
| US4307418A (en) * | 1979-10-12 | 1981-12-22 | Rca Corporation | Video disc player system for correlating stylus position with information previously detected from disc |
| US4331990A (en) * | 1979-10-18 | 1982-05-25 | Burroughs Corporation | Flat coil linear actuator for multiple transducer arms |
| FR2474221A1 (fr) * | 1980-01-23 | 1981-07-24 | Thomson Csf | Dispositif optique d'enregistrement-lecture de supports d'information et systeme de memoire optique comportant un tel systeme |
| CA1147858A (en) * | 1980-07-16 | 1983-06-07 | Discovision Associates | System for recording digital information in a pulse-length modulation format |
| JPS5730870U (es) * | 1980-07-29 | 1982-02-18 | ||
| US4386375A (en) * | 1980-09-24 | 1983-05-31 | Rca Corporation | Video disc player with multiple signal recovery transducers |
| US4365324A (en) * | 1980-11-19 | 1982-12-21 | Rca Corporation | Eccentricity control device |
| DE3049004A1 (de) * | 1980-12-24 | 1982-07-15 | Robert Bosch Gmbh, 7000 Stuttgart | Verfahren zur wiedergabe von auf plattenfoermigen traegern aufgezeichneten signalen |
| US4490752A (en) * | 1981-04-01 | 1984-12-25 | Victor Company Of Japan, Ltd. | Rotary recording medium having a selectively reproducible continuous stream of audio signals recorded thereon and reproducing apparatus therefor |
| JPS589226A (ja) * | 1981-07-07 | 1983-01-19 | Toshiba Corp | 光ディスク装置 |
| JPS5860471A (ja) * | 1981-10-07 | 1983-04-09 | Nippon Kogaku Kk <Nikon> | デイスク記録装置 |
| US4797752A (en) * | 1981-12-04 | 1989-01-10 | Discovision Associates | Information storage carrier and method for storing duplicate information |
| US4796098A (en) * | 1981-12-04 | 1989-01-03 | Discovision Associates | Banded and interleaved video disc format with duplicate information stored at different disc locations |
| JPS5897136A (ja) * | 1981-12-04 | 1983-06-09 | Matsushita Electric Ind Co Ltd | 光学的記録装置 |
| US4774699A (en) * | 1981-12-21 | 1988-09-27 | Discovision Associates | Method and apparatus for positioning a read head to a selected track on a record disc |
| JPS5916169A (ja) * | 1982-07-16 | 1984-01-27 | Trio Kenwood Corp | トラツキングサ−ボ装置 |
| JPS59218083A (ja) * | 1983-05-25 | 1984-12-08 | Sony Corp | デイスク記録装置 |
| EP0145751A1 (en) * | 1983-06-07 | 1985-06-26 | Storage Technology Partners Ii | A system and method for organizing and managing data stored on an informational disk |
| JPS6055592U (ja) * | 1983-09-26 | 1985-04-18 | 本田技研工業株式会社 | ヘツドライト装置 |
| JPS6095769A (ja) * | 1983-10-31 | 1985-05-29 | Toshiba Corp | デイスク記録再生装置 |
| JPS60143442A (ja) * | 1983-12-28 | 1985-07-29 | Olympus Optical Co Ltd | トラツキング方式 |
| GB2158611A (en) * | 1984-05-07 | 1985-11-13 | Rca Corp | Servo error reduction apparatus for disc record playback system |
| US4706117A (en) * | 1984-06-01 | 1987-11-10 | Arnold Schoolman | Stereo laser disc viewing system |
| US4578786A (en) * | 1984-07-06 | 1986-03-25 | Storage Technology Partners Ii | Track pitch calibration system for use in optical storage devices |
| US4571714A (en) * | 1984-07-06 | 1986-02-18 | Storage Technology Partners Ii | Read beam position calibration |
| US4577301A (en) * | 1984-07-06 | 1986-03-18 | Storage Technology Partners Ii | Track pitch calibration error reduction |
| JPS61168131A (ja) * | 1985-01-21 | 1986-07-29 | Matsushita Electric Ind Co Ltd | 光情報記録再生装置 |
| JPS61177884A (ja) * | 1985-02-04 | 1986-08-09 | Hitachi Denshi Ltd | 画像データ記録再生方法 |
| US4907214A (en) * | 1985-12-18 | 1990-03-06 | Kabushiki Kaisha Toshiba | Eccentricity correction apparatus for an optical disk device |
| DE3632465A1 (de) * | 1986-09-24 | 1988-03-31 | Siemens Ag | Verfahren und einrichtung zum aufzeichnen einer kreisrunden spur auf einer datenspeicherplatte |
| JP2523555B2 (ja) * | 1986-12-19 | 1996-08-14 | 株式会社日立製作所 | 光スポットの制御方法及び位置制御装置 |
| US4764914A (en) * | 1987-09-11 | 1988-08-16 | Eastman Kodak Company | Least squares method and apparatus for determining track eccentricity of a disk |
| US4897827A (en) * | 1987-12-12 | 1990-01-30 | U.S. Philips Corporation | Video disc player with rapid track access means |
| EP0563230B1 (en) * | 1990-12-19 | 2000-02-16 | Mobile Storage Technology Inc. | Miniature hard disk drive for portable computer |
| US5379171A (en) * | 1991-09-25 | 1995-01-03 | Integral Peripherals | Microminiature hard disk drive |
| WO1993006595A1 (en) * | 1991-09-25 | 1993-04-01 | Integral Peripherals, Inc. | Adaptive runout compensation for miniature disk drives |
| US6310747B1 (en) | 1991-09-25 | 2001-10-30 | Mobile Storage Technology, Inc. | Method for reducing external signal interference with signals in a computer disk storage system |
| US5463758A (en) * | 1993-08-02 | 1995-10-31 | International Business Machines Corporation | System and method for reducing seek time for read operations in mirrored DASD files |
| CA2138301C (en) * | 1994-01-21 | 1998-12-15 | Hal Hjalmar Ottesen | Apparatus and method for providing multimedia data |
| US5596458A (en) * | 1994-12-19 | 1997-01-21 | Integral Peripherals, Inc. | Variable zone layout for information storage disk drive |
| US6005725A (en) * | 1994-12-19 | 1999-12-21 | Mobile Storage Technology Inc. | Variable zone layout and track pitch parameter considerations for information storage disk drive |
| US7102692B1 (en) * | 1999-10-13 | 2006-09-05 | Thomson Licensing | Digital and analog television signal digitization and processing device |
| US7342741B1 (en) | 2000-02-10 | 2008-03-11 | Esgw Holdings Limited | Disk drive with variable track density |
| CN1849659A (zh) * | 2003-09-09 | 2006-10-18 | 皇家飞利浦电子股份有限公司 | 使用光盘上记录的信息的管理 |
| KR20090118745A (ko) * | 2008-05-14 | 2009-11-18 | 삼성전자주식회사 | 서보 패턴 오버헤드 최적화 방법 및 이를 이용한 디스크드라이브 |
| US8077426B2 (en) * | 2008-12-16 | 2011-12-13 | Guzik Technical Enterprises | Magnetic disk centering method and system |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2792455A (en) * | 1954-01-21 | 1957-05-14 | Teldec Schallplatten G M B H | Recording apparatus |
| US2792454A (en) * | 1954-01-21 | 1957-05-14 | Teldec Schallplatten G M B H | Storage device |
| US3654624A (en) * | 1969-03-17 | 1972-04-04 | Precision Instr Co | Laser recording system using drum mounted record strips |
| US3716845A (en) * | 1972-03-09 | 1973-02-13 | Honeywell Inc | Optical memory with interferometer tracking |
| US3945037A (en) * | 1972-06-01 | 1976-03-16 | Iomec, Inc. | Feedback control system for linear position transducer |
| US3946367A (en) * | 1972-12-20 | 1976-03-23 | Videonics Of Hawaii, Inc. | Three dimensional electro-optical retrieval system |
| NL174591C (nl) * | 1973-02-09 | 1984-07-02 | Philips Nv | Schijfvormig registratiedragerlichaam. |
| US3943565A (en) * | 1973-09-26 | 1976-03-09 | Loewe-Opta Gmbh | Track scan initiation and cutout arrangement for a helical scan video recorder |
| US3932700A (en) * | 1974-02-04 | 1976-01-13 | Zenith Radio Corporation | Focus tracking registration for optical reproducing systems |
| US4056830A (en) * | 1974-03-15 | 1977-11-01 | Burroughs Corporation | Utilizing data for transducer positioning |
| US3881184A (en) * | 1974-05-28 | 1975-04-29 | Ibm | Adaptive digital servo system |
| US3956766A (en) * | 1974-11-25 | 1976-05-11 | International Business Machines Corporation | Counter resetting circuitry for magnetic disk system |
| US4048660A (en) * | 1975-12-23 | 1977-09-13 | International Business Machines Corporation | Record track following and seeking |
-
1976
- 1976-03-19 GB GB11119/76A patent/GB1576426A/en not_active Expired
-
1977
- 1977-03-14 US US05/777,475 patent/US4138741A/en not_active Expired - Lifetime
- 1977-03-18 DE DE2711924A patent/DE2711924C2/de not_active Expired
- 1977-03-18 JP JP3102277A patent/JPS52114305A/ja active Granted
- 1977-03-18 AU AU23389/77A patent/AU510208B2/en not_active Expired
- 1977-03-18 FR FR7708219A patent/FR2344910A1/fr active Granted
- 1977-03-18 NL NL7702979A patent/NL7702979A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2711924C2 (de) | 1983-04-21 |
| FR2344910B1 (es) | 1981-02-27 |
| AU510208B2 (en) | 1980-06-12 |
| US4138741A (en) | 1979-02-06 |
| JPS5757768B2 (es) | 1982-12-06 |
| JPS52114305A (en) | 1977-09-26 |
| AU2338977A (en) | 1978-09-21 |
| NL7702979A (nl) | 1977-09-21 |
| DE2711924A1 (de) | 1977-09-22 |
| FR2344910A1 (fr) | 1977-10-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19970307 |